Cinematograph apparatus



June 20, 1939. E. w. HOBBS cum'i'oenmx APPARATUS Filed Oct. 15 1937 9Sheets-Sheet 1 R, w W W 6 June 20,1939. v 8 5 2,103,092

cmzlwroamrn APPARATUS FiledOct. is. 1957 9 sheets-shut 2 [Ll/Il 7 1411111,

r \h H R I m w k2 Pm: m Q 1 &5 1 I I Q Q fix I v 0 Q N .,IO' 3? w v Q Nx M. 1 g N. Q s I mlvik/ro-zf June20, 1939.

E. w. HOBBS CINEMATOGRAPH APPARATUS Filed Oct. 15, 1937 9 sheets-s5. s

June 20, 1939. E. w. HOBBS cmnuuocnnn APPARATUS 9 Sheets-Shoot 6 FiledOct. 15', 1957 n W 1 H I 7// H n o H I 7 I T lfi 1 H I I 1 U PM, m f- XW m in AU I m my m W N v 4 #IIVVENTO'fi qqne Z O, 1939. I w HOBBS2,153,092

' cmE 'roqnAPH APPARATUS Filed Oct. 15, 1937 '9 Sheets-Sheet, 3

m'm/vrozz Patented June 20, 1939 UNITED STATES PATENT OFFICE.

Application October 15, 1937, Serial No. 169,269 In Great BritainJanuary 27, 1937 2 Claims.

This invention relates to cinematograph apparatus and the object of theinvention is to provide an animateddisplay from a picture or like seriesof a simple'and inexpensive character.

The invention uses in a cinematograph apparatus, a picture sequencecomprising a sheet of paper or the like, which is not necessarilytransparent, on which there is provided by printing or like process apicture series consisting of rows extending across the sheet and soarranged that the terminal picture of one row is adjacent the nextfollowing picture in series continued in the next row. Such picturesequence is simple and inexpensive to manufacture.

The invention comprises an apparatus .for effecting a cinematographdisplay of the picture sequence aforesaid comprising a sliding carriagefor the sheet, means for projecting light reflected from the pictures onto a screen, means for mov- 2o ing the carriage step-by-step to bringthe individual pictures in each row successively into register with theprojection means, means for reversing the step-by-step movement at theend of each travel of the carriage and means for advancing the picturesheet transversely in order to bring the rows of pictures successivelyinto register with the projection means. The sequence of the individualpictures on the sheet is thus scanned in one direction across the sheetfor the first row, then in the opposite direction across the sheet forthe second row, and so on for the complete picture sequence.

According to a feature of the invention the picture sheet is mounted ona carrier which is movable on the sliding carriage and the picturecarrier is advanced transversely by means operated by the movement ofthe carriage at each end of its travel. Thus, itis only necessary toapply a drive to the means for imparting stepby-step motion to thecarriage for eii'ecting the complete scanning operation. Preferably, theprojection means comprises a shutter operatively connected to the meansproducing the movement of the carriage to mask the projected lightduring the movement of the carriage.

In one form of the apparatus the means for im-.

parting step-by-step motion to the carriage comprises a series ofabutments spaced lengthwise of the carriage according to the separationof the individual pictures in each row, a rocking or oscillating drivingmember, driving fingers carried on the rocking member for engagementwith the abutments to drive the carriage in opposite directions andmeans automatically to disengage one driving finger and engage the otherdriving finger at each end of the travel of the carriage. In oneconstruction the means for advancing the sheet carrier at each end ofthe travel of the carriage comprises a ratchet device on thesheetcarrier having a pivoted operating lever arranged to engagenormally stationary abutments at opposite ends of the travel of thecarriage. Means is conveniently provided for manuallyreciprocating oneof said abutments to advance the sheet carrier while the carriage isstationary, in order to feed a sheet onto and ofl the carrier.

In one form oi the sheet carrier it comprises a roller and a resilientmember engaging the v roller and constituting a locating stop for thesheet applied to the roller. The-picture sheet is inserted over theroller up to the resilient member which thus determines the properposition of the sheet with respect to the projection means and then thesheet is further fed on to the carrier by the ratchet device aforesaidwhich thus maintains proper relationship between the rows of picturesand the projection means. I

According to another construction of the means for impartingstep-by-step motion to the carriage there is provided a series ofabutments spaced along thecarriage according to the separation of theindividual pictures, a rotatable driving member having a toothed partengaging between successive pairs of said abutments and having aneffective width approximately equal to the space between adjacentabutments, and an annular retarding flange in the path of said abutmentsto engage behind an abutment immediately following the toothed part, andalso to engage in front of an abutment in advance of the toothed part,which flange is formed with peripheral openings to permit the passage ofsaid abutments to and from the toothed part. By continuous rotation ofthis driving member, a step-by-step motion of the carriage is obtained,and the provision of a toothed part which fully occupies the spacebetween adjacent abutments and also the provision of the retardingflange serve adequately to control each step of the movement of thecarriage.

In one preferred construction there are employed f two rotary drivingmembers as aforesaid co-operating with the abutments to move thecarriage step-by-step in opposite directions and means is providedautomatically changing the engagement of the abutments with therespective driving members at each end of the travel of the carriage. Ina convenient construction the abutments are carried on a frameadjustably mounted on the carriage, which frame is automaticallycontrolled by means of fixed stop at each end of the travel of thecarriage to bring the abutments into engagement with the rotary membersalternately.

In another form of the sheet carrier there is I provided a rotatabledrum for carrying the sheet 5 on its periphery, which drum hasaplurality of circularly arranged projections extending from each endand'adapted to engage with fixed cams at the limits of travel of thecarriage in order to advance the drum through a distance correspond- 10ing to the distance between adjacent rows of pictures at each end of thetravel of the carriage.

Each of these cams is conveniently of wedgeshape to enter betweensuccessive projections on the drum for accurately locating the drum incor- 15 rect position after its adjustment at each end of the travel ofthe carriage.

Associated with the drum hereinbefore referred to for carrying thepicture sheet there may be.

provided a manually movable member for wrap- 20 ping the sheet aroundthe drum and clamping means for holding the ends of the sheet on thedrum, and operated to engage and disengage the sheet by said manuallymovable member.

It is a further feature of the invention to pro- 5 ,vide an apparatusfor effecting a cinematograph display as aforesaid in combination withmeans for reproduction from a sound record, wherein a pick-up device forthe sound record is operatively connected to a member controlled by the30 movement of the sliding carriage to bring the .pick-up into startingposition by movement of the carriage to one end of its range ofmovement. Conveniently, driving means for the-sound record carrier isalso coupled through a clutch to the 35 drive for the carriage and meansis provided on the sound record carrier for engaging the clutch at apredetermined position of the sound record carrier relatively to thepick-up device, in order to obtain synchronism between the picturedisplay and sound reproduction.

In the accompanying drawings several specific embodiments of theinvention are illustrated by way'of example. In these drawings:-

Figure l is an end elevation, Figure 2 a side 5 elevation and Figure 3 aplan of one form of the cinematograph apparatus, these views beingpartly in section; L

Figure 4 is a diagrammatic representation of a picture sheet, Figure 5is an end elevation, Fig- 5 ure 6 a side elevation and Figure '1 a planof another form of the apparatus, the casing being shown in section;

Figures 8, 9 and 10 are detail views of the constructions shown inFigures 5, 6 and '7;

55 Figure 11 is a side elevation, Figure 12 a plan and Figure 13 is anend elevation of a cinematograph apparatus in combination with soundreproducing-means, the outer casing being shown in section;

0 Figure 14 is a front elevation of the complete Y apparatus;

Figures 15 and 16 are detail views on an enlarged scale of control meansfor sound reproduction, and v 65 Figure 17 is a, detail view on anenlarged scale of the construction shown in Figures 5, 6 and 7.

Like references indicate like parts in the several figures ofthedrawings.

The construction shown in Figures 1 to 3 is 70 especially applicable tothe projection of pictures for advertising or like purposes and may bearranged .to display .theindividual picture successively for appreciableintervals, although it may beoperated at a quicker rate for a motion 75picture display.v

' In this apparatus there is provided a carriage indicated at 10slidably mounted on bars H rigidly carried in a framework l2 attached toa casing 2| for the apparatus. On the carriage 10 there are mountedinner and outer guides 13 and 14 respectively between which the picturesheet is fed. The outer guide I4 is formed with an opening at the topextending the full width of the picture sheet to permit the sheet to befed between the guides and also to permit projection of the-pictures onthe sheet. One margin of this opening is indicated at' and the other atIS in Figures 1 and 3.

The carrier for the picture sheet comprises a roller I1 rotatablymounted in the end frames of 5 the carriage and an endless belt 18passing over this roller and an auxiliary roller IS. A gap is providedin the upper part of the guide 13 and the rollers l1 and IQ'are soarranged that they project slightly above the guide. Alternatively, 20two gaps may be provideddn the upper part of the guide l3, one for eachof the rollers 11 and I9 so as to provide a portion of the guide betweenthese rollers. The picture sheet is inserted through a slot 20 in acasing 2| housing the apparatus and beneath guide fingers 22 mounted onthe end frames of the carriage l0. A'resilient member 23 serves tolocate and hold the paper sheet in close contact with the roller l1 ashereinafter described.

The carriage i0 is provided with a longitudinal feed bar 25 which isformed with perforations 26 to provide uniform spaced abutments forusein effecting a step-by-step movement of the carriage. A rockingmember 21 mounted in a bearing 28 is linked to a rod 29 joined to thearmature. of a solenoid 3| and a rocking motion of the member 21isveffected by periodically energising the solenoid 3| to move thearmature 30 against the action of a return spring 32. At diametricallyopposite sides of the rocking member 21 there are pivoted drivingfingers 33 and 34 respectively, the former being above and the latterbelow the perforated bar'25, and formed at their ends to engage in theperforations in the bar. Each of these fingers 33 and 34 is providedwith a spring 35 attached to the supporting frame of bearing 28 andtending to press the finger into engagement with the bar 25.

It .will be appreciated that when the solenoid 3| is energised, therocking member 21 moves andpropels both fingers 33-34 simultaneously butin opposite directions. The fingers 33-34 are so shaped at their outerextremities that a thrust to the right is imparted to the feed bar 25 bythe upper finger 33, whereasthe shape of the extremity of the lowerfinger 34 is such that it imparts a pull on the feed bar 25 towards theleft. The function of the return spring 32 is torestore the rocker andsolenoid, solenoid armature 30, linkage 29 and rocker 2-1 and associatedparts to their original starting position.

The precise amount of movement of the rocker 21 is limited in eachdirection by adjustable stops 21 21 attached tothe supportingframe 5 ofthe bearing 28.

An arm 24 pivoted on the axis of the rocker 21 has twopins 45'and 45arranged to engage the driving .fingers 33 and 34 respectively. The arm24 is arranged to occupy either of two positions under the control of aspring 49 formed with a V-shaped part which can engage either of twocorresponding recesse's formed in the end of the arm 24. In one positionof the arm 24 the pin 45 lifts the driving finger 33 out of con- 7 tactwith the perforated bar 25 and permits the finger 34 to engage the bar;and in the other position the pin lifts the finger 34 clear and the pin45 lowers the finger 33 on to the bar 25. The pins 45 and 46 also engagecams 41 and 48 respectively at opposite ends of the carriage. These camsserve to reverse the position of the arm 24 at each end of the travel ofthe carriage in order to determine the direction of movement of thecarriage in accordance with the picture sequence.

On the roller I! there is provided a ratchet wheel 38 and a pawl 31engaging this ratchet wheel is pivoted on an arm 38 carried by a pivotpin 33 mounted on the carriage l0. Also, connected to this pivot pin 39is a double-armed operating lever 40 and an extension 4| connected to areturn spring 42. Cooperating respectively with the two-arms of thelever 43 are two normally stationary abutments 43 and 44 mounted in thecasing 2| at positions of the lever 40 corresponding respectively withopposite ends of the travel of the carriage l0.

Above the roller I! there is provided a lamp directing light upon thepicture sheet at a position above the roller H and an optical projectionsystem 5| is arranged to project light reflected from the picture sheeton to a mirror 52 and from thence on to a ground glass or similarviewing screen 53. A pivoted shutter 54 is pro vided operated by meansof an arm 55 carried on the rocking member 21 and arranged to interruptthe projection during the time the carriage is actually being moved. Itis therefore convenient to connect the fingers 33 and 34 to the rockingmember 21 with some lost motion so that the shutter is operated slightlybefore the car- .riage is actually moved by the fingers 33 and 34.

Alternatively, itmay be convenient to increase by about 25% the amountof movement of the driving fingers 33 and 34 disposing themso that theinitial movement. traverses a solid part of the feed bar 25, the fingerthen engaging a perforation 26 and moving forward both itself and thebar for the requisite distance.

In use of the apparatus, there is employed a sheet carrying the picturesequence as diagrammatically represented in Figure 4 and having theindividual pictures p arranged in rows 1' to be scanned in theorderrepresented by the arrows in this figure. The carriage I8 is movedto the extreme position of its travel by energising the solenoid 3|periodically, which is to the right in Figure 3, and the sheet isinserted through the slot 20 in the casing beneath the fingers 22 to aposition at which it is stopped by the pressure member 23. This memberis so arranged that for a picture sheet of given construction the rowsof pictures will be brought into proper register with the projectionmeans 5| by subsequent rotation of the roller i1 under the control oftheratchetwheel 38. The abutment 44 is capable of sliding movement underthe control of a spring and knob 56 at the exterior of the casing sothat by reciprocating the abutment 44 by means of the knob the lever 40is operated to step round the roller I1 until the first row of picturesis in line with the projecting means 5|. The pressure of the springmaintains the abutment 44 in the outer operative position after thepicture sheet has been placed in position. The apparatus is then placedin automatic operation by periodically energising the solenoid. 3| andit will be understood that by the initial movement of the carriage, tothe'extreme position to the right in Figure 3, the cam 41 will haveengaged the pin 45 to raise the arm 24 and permit the driving finger 34to engage with the perforated bar 25. Therefore, by repeatedenergisation of the solenoid 3! the carriage is moved step-by-step tothe left in Figure 3 until the pin 46 on the arm 24 engages with the cam48 and reverses the position of the arm 24 to bring the driving finger33 into operative position. Simultaneously, the double-armed lever 40engages with the fixed abutment 43 to rotate the feed roller ll throughone step to bring the next row of individual pictures into line with theprojection means 5|. The step-by-step motion is then immediatelycontinued in the reverse direction under the action of the drivingfinger 33 and the to-and-fro step by-step motion of the carriage,together with the periodic advance of the feed roller IT continuesautomatically. The individual pictures of the sequence are thusreflected upon the screen in the desired sequence.

Energising current for the solenoid may be controlled by means of anyknown form of intermittent electrical mechanism, for instance by meansof a simple press-button or by a rotating contact arm, or arms,contacting with one or more relatively fixed contacts.

In the construction of cinematograph apparatus shown in Figures 5 to 8of the drawings,

there is employed a carrier for the picture sheet consisting of a drumrotatably mounted in a carriage 5| slidable on a single bar 62 mountedon a framework within a casing 63 of the apparatus. The carriage 6|comprises end-plates 64 joined by a tubular member slidable on bar 62and a longitudinal member 65 of V-shape crosssection, which is supportedby a roller'ifi rotatable about a vertical axis on a bracket 59 fixedupon the framework. In a bar there is provided a plurality of pins 10extending above and below the bar and constituting the abutments for usein the step-by-step motion of the carriage.

On a spindle H carried by the bracket 59 there are mounted two rotarydriving members 12 and 13 formed on their opposed faces with bevelgear-teeth meshing with a gear-wheel 14 carried on -a shaft 15 driventhrough gearing 75 by an electric motor 11. The two driving members 12and T3 are thus rotated in opposite directions.

Each of the driving members l2, 13 comprise a radial toothed part 8| toengage between pairs of successive pins HI and a retarding flange 18arranged to lie around three adjacent pins 10, as shown in Figures 9-and 10. By rotation of the driving member the leading edge 19 of thetoothed part 8| engages behind a pin 18 to effect a movement of thecarriage and at this position a part of the flange T8 indicated at 3!lies in front of a preceding pin 10 and prevents the pin Ill engaged bythe tooth 8| moving away from this tooth. Also, the toothed part BI isdesigned to fill the space between successive pins 10, and to preventtoo rapid advance of the carriage. The inner surface of the flange 80with which the 'pins I0 contact may be provided with a bufferleaf-spring to take the shock of the pin M as it is retarded by thisflange. Thus, the carriage is advanced one step for'one rotation of thedriving member 1-2 or 13 and during the interval in which the carriageis stationary the carriage is- 8'I-upon the end member 04 of thecarriage. On H8 engaged by a spring latch II-'I adapted to each of thearms 86 there is provided a sliding hold the retaining member H4 ineitherfof two I member having cam surfaces 89 and 90 enpositions, one inwhich it is removed from the gaging with pins 9| and 92 respectively. Inone surface of the drum as shown in Figure 8, and

5 position of the slide 88 on the arm 86 the engagethe other in which itis caused to bear against t5 ment of the cam surfaces with the pins 9|and the surface of the drum. A paper folding member 92 moves the arm 86to a lower position in which H8 pivoted on the casing 63 is arrangednormally the pins I0 engage with the operating lever 13, to lie againstthe guide H2 and is adapted to be as shown in Figure 6 and in the otherposition of moved therefrom to a position just beyond the .10 the slide88 on the arm 86 the latter is moved retaining member H4, as shown inchain lines to bring the pins I0 into engagement with the in Figure 8.This paper folding member H8 caroperating member 12. The arm 86 isretained ries a deflecting part H9 at each side adapted to in each ofits two alternative positions by means engage between pins I20 on thesupport II5and of a spring latch 93. so arranged that by the movement ofthe paper The movement of each slide 88 is effected by folding member H8'to the position shown in 5 means of a lever 94 retained in positionscorrechain lines the retaining member H4 is brought sponding to thealternative positions of the slide to the position bearing on the drumand a moveby means of a spring latch 95. The lower end ment of thefolding member H8 in the opposite of the lever 94 cooperates with fixedcams 96 direction moves the retaining member H4 to its and 91 providedfor each of these levers, the cams outer position. 20

i 96 and 91 for each of the levers being located at In operation, thepicture sheet is entered positions corresponding to opposite ends of thethrough the slot H0 and is guided around the travel of the carriage. Bymeans of the cams drum by means of the guide H2 until the leading 96 and91 the final movement of the carriage to edge occupies a positionbeneath the retaining one end of its travel raises the pins 10 forenmember H4, which in this instance is in the 25 gagement with theoperating member 12 and the raised position. The'folding member H8 isthen opposite end of the travel of the carriage lowers moved by handfrom the position shown in them for engagement with the operating mem-Figure 8, and carries with it the sheet so as to her 13. Thus, by meansof a continuous drive fold the trailing edge over the drum. 'and befromthe motor 11 the carriage is reciprocated neath the retaining member H4.At the end of 30 backwards and forwards automatically. this movement theretaining member is moved At each end of the drum 60 there is provided ato its alternative position as hereinbefore deplural ty of n t d a ly xtd n p ns 00 cirscribed so as to clamp the edges or the sheet cularlyarranged and spaced by a distance equivon to the drum.

alent to the spacing of alternative rows of the The retaining memberHlmay be constructed 35 pictures on the sheet. At each'end of theframein such width as to correspond with the width w k there ar p v d dtw fi d w e-s ap d of'one row of individual pictures of the sheet andcams IOI with which the pins I00 engage at the to occupy in relation tothe sheet on the drum 8. end of the travel of the carriage. Each ofthese position which is uniform with the rows of pic- 40 cams IUI isformed with an inclined face I02 tures, The apparatus may thusbeoperated con- 40 which is en ed by a pin I00 so a t tu n the tinuouslyto give repetitions of the display and drum to a. distance correspondingto the spacing if desired a shutter may be provided autobetweenSuccessive rows of p u s a d the matically controlled by the rotation ofthe drum movement is limited by another surface I03 of to m k th pr jcted light during the time in .45 e ca a t ch the next Succeeding Pwhich the retaining member III is opposite the 48 abuts; The pins I00 atone end of the drum 60 light projection means I06. I

are interspaced relatively to those at the other In th t form f theapparatusshown' in Fig end so that the drum hav ng been positioned ures11 to 16, a cinematograph projection of the by the a at One end of the dum, t e p construction previously described is combined 50 I00 at theother end of the drum is brought in with means for simultaneouslyreproducing sound 50 line with the inclined surface Of its.co-operatingfrom a sound record, The complete apparatus cam IOI so that when thedrum r a h th D- is housed in a cabinet indicated at I20 comprispositeend of its travel it is again adv n ing three compartments. The upperone, I2I, th o a distance corresponding t0 Successive contains thecinematograph apparatus, theme- .55 rows of pictures. Y 0nd one, I22,the sound-reproducing means, and 56 1 'L ht from a a p directed on t thelowerone/ I23, thedriving mechanism, for drum and the reflected lightfrom an area correb t th in ato mph apparatus and the 5901161118 to anindividual Picture is directed y sound-reproducing apparatus and alsothe wirelens System 011 to 2% 80113811101- ihterless receiver, indicatedat I24. The cinemato- 60 wilting the light projection dur actual move.graph apparatus is driven through a vertical 00 ment of the carriagethere is provided a rotating haft I25 connected by gearing I26 to thedrivshutter I08 and a partition I09 f the s n ing shaft 15 of thecinematograph apparatus. s rv s t pr v t stray l ht r n h s r At thelower end the shaft I25'is connected by The picture sheet is fed int happ r gears I21 to'a spindle I28 coupled by means of;

through a slot H0 in the casing 63 overs guide a friction clutch I29 toa driving motor I30. 65 III to the drum an s guided around The motor I30also drives through a reduction drum by means of an outer guide H2. Endgear I! a turntable"? for carrying a sound flanges H3 on the drumserve'to locate the sheet record of the disc type.

in proper position longitudinally of the drum. For controlling thesound-reproducingappa- 7 At the periphery of the drum there is providedratus the drum 60 of the cinematograph appal0 L a paper retaining memberIll extending lengthratus carriesat each end a projecting pin I83 wise.across the drum and carried by radial sup (see Figures 11 and 16) soarranged that in the ports H5 connected together inside the drum andposition of the drum with the retaining memsIidabIe radially of thedrum, one ateach end. be: I I4 in line with the projector I00 it engages15 Each of these supports is formed with a detent an inclined member I34carried on a pivoted lever 15' I35. The levers I35, one at each end, arecoupled together for movement together and are connected to a bar I36extending into the compartment I22 of the sound-reproducing means.

The sound-reproducing means comprises a pick-up device I31 carried on atone-arm I38 mounted for horizontal and vertical swivel movement at I39.An extension I40 of the tone-arm has a forked end I in which the bar I36engages- The extension I40 of the tone-arm is also formed with anabutment I42 which in the position of the tone-arm raised from therecord, lies in thepath of a striker I43 carried by an extension I44 ofthe sliding carriage of the cinematograph apparatus.

In the position of the drum 60 with the sheet retaining means II4opposite the projector I06, one of the pins I33 on the drum in reachingthis position rides on to the inclined member I34, depresses the leverI35 and by means of the bar I36 bearing in the forked end I4I of thetone-arm extension, lifts the pick-up I31 ofi a record lying on theturntable I32. Then, by the initial sliding movement of the carriage oithe cinematograph apparatus, that is, while the sheet retaining memberH4 is opposite the projector I06, the

striker I43 engages the part I42 of the tone-arm had previously engagedthe cooperating inclined surface I34 now moves on" this surface and thepin I33 at the other'end of the drum new engages its complementaryinclined surface to re- .turn the lever I35 to itsother position. Aspring latch I35a is provided for each of the levers I35 to retain themin either of their two alternative positions. When in this position thepart I42 is now raised above the striker I43 so that subsequent slidingmovementsof the carriage have no effect upon the tone-arm until the pinI33 on the drum again engages with the inclined member I34 at the end ofthe picture sequence to again lift the tone-arm.

The turntable I32 is provided with a locating clutch I29, this strikerbeing pivotally mounted on a bracket I56 and adapted to be retained inpositions corresponding to the engaged and disengaged positions of theclutch I29 by means of a spring latch I51. The .arrangement is such thatwhen the stop engages the inclined part II of the bell-crank lever, theclutch is engaged. Thus, in operation, the picture sheet is applied tothe drum 60 of the cinematograph apparatus in the manner hereinbeforedescribed and the appropriatesound record disc is placed in positionupon the turntable I32. The motoris then energised and the turntablecommences to rotate and at a predetermined position of the record theclutch I29 is operated to connect the cine- 7 matograph apparatus to thedrive. During the first traverse of the carriage -.of the cinematographapparatus the tone-arm I38 is automatically adjusted as hereinbeforedescribed to bring the pick-up into correct starting position, and thepick-up is eventually lowered on to the record at the commencement ofthe picture display so as to synchronise therewith. The sound track onthe record is conveniently provided with a starting groove ofcomparatively quick pitch to ensure proper engagement of the pick-upwith the sound track.

The pick-up I3! is electrically connected with the amplifier of thewireless receiver I34 in known manner and the reproduction is obtainedby means of a loudspeaker indicated at I60. A manual control I 6| isprovided on the front of the cabinet for operating the clutch I29, forinstance when no sound reproduction is required. In addition to themanual control I6I for the clutch there is provided a control dial I62for the wireless receiver with openings I63 at each side for sound. Ahinged door I64 is provided for access to the turntable and the screenI65 of the cinematograph apparatus is arranged at the front of thecabinet provided. with a hinged cover I66.

The sheet carrying the picture sequence for use with this invention mayconveniently be of paper or like opaque sheet printed with theindividual pictures. In this instance the light reflected from the papersheet is projected on to'the screen. Alternatively, the picture sheetmay consist of transparent material having the pictures in opaque orsemi-opaque material which may be coloured, in which case the surfacemay be required for advertisirg purposes, and

in this case the sliding carriage of the cinematograph apparatus isoperated slowly.

I claim:

1. Apparatus for cinematograph display of a picture sequence formed in aplurality of rows on a sheet, comprising a sliding carriage for thesheet, a viewing. screen, projection means for directing light reflectedfrom the pictures on to said screen, means for moving the carriagesb'ep-by-step to bring the individual pictures in each row successivelyinto register with the projection means, means for reversing the stepbystep movement at the end of each travel of the carriage and .means foradvancing the picture sheet transversely in order to bring the rows,successively into register with the projection means, a sound recordcarrier, a pick-up device for exploring a sound record on said carrier,means connecting said pick-up device to said sliding carriage wherebysaid pick-up is brought to a starting position by movement of thecarriage to one end of its travel and means for reproducing soundsignals provided by said pickup device.

2; Apparatus for cinematograph display of a picture sequence formed in aplurality of rows on a sheet, comprising a sliding carriage for thesheet, a viewing screen, projection means for directing light reflectedfrom the pictures err to said screen, means for moving the carriagestepby-step to bring the individual pictures in each row successivelyinto register with the projection movement riage andmeansfor advancingthe picture sheet s forreversing the step-by-step the end of each travelof the carmeans, me

transversely in order to bring the rows successively' into register withthe projection means, a rotary sound record carrierfiadriving means, adriving connection between said driving means and said record carrierand a driving connection between said driving means and said slidingcarrelatively to said pick-up device, and means forreproducing soundsignals provided by said pick- 10 up device. I

'- EDWARD WALTER HOBBS.

